Android解析json对象和json数组
json数据格式解析可以分为两种：
一种是普通的对象(比如：modelinfo)
一种是带有数组形式的List<modelinfo>列表形式的
下面我们分别来看下对象形式的和数组形式的Json是如何进行解析的
Json解析说明：
普通的对象形式的只需用JSONObject ，带数组形式的需要使用JSONArray 将其变成一个List
1，普通对象格式的Json对象解析
定义测试json数据
{"userbean":{"Uid":"19908","Showname":"好用的Android解析Json数据","Avtar":"Json解析对象","State":0}}
分析代码如下：
// TODO 状态处理 500 200
int res = 0;
res = httpClient.execute(httpPost).getStatusLine().getStatusCode();
if (res == 200) {
/*
* 当返回码为200时，做处理
* 得到服务器端返回json数据，并做处理 www.jsons.cn
* */
HttpResponse httpResponse = httpClient.execute(httpPost);
StringBuilder builder = new StringBuilder();
BufferedReader bufferedReader2 = new BufferedReader(
new InputStreamReader(httpResponse.getEntity().getContent()));
String str2 = "";
for (String s = bufferedReader2.readLine(); s != null; s = bufferedReader2
.readLine()) {
builder.append(s);
}
Log.i("cat", ">>>>>>" builder.toString());
JSONObject jsonObject = new JSONObject(builder.toString())
.getJSONObject("userbean");
String Uid;
String Showname;
String Avtar;
String State;
Uid = jsonObject.getString("Uid");
Showname = jsonObject.getString("Showname");
Avtar = jsonObject.getString("Avtar");
State = jsonObject.getString("State");
2，带数组列表形式的Json数组解析
定义测试使用的json数据
{
"calendar": {
"calendarlist": [
{
"calendar_id": "1996",
"title": "Android解析Json",
"category_name": "安卓",
"showtime": "2016.3.31",
"endshowtime": "2016.3.31",
"allDay": true
},
{
"calendar_id": "1998",
"title": "解析",
"category_name": "Android",
"showtime": "2016.3.31",
"endshowtime": "2016.3.31",
"allDay": true
}
]
}
}
分析代码如下：
// TODO 状态处理 500 200
int res = 0;
res = httpClient.execute(httpPost).getStatusLine().getStatusCode();
if (res == 200) {
//当返回码为200时，做处理得到服务器端返回json数据，并做处理 www.jsons.cn
HttpResponse httpResponse = httpClient.execute(httpPost);
StringBuilder builder = new StringBuilder();
BufferedReader bufferedReader2 = new BufferedReader(
new InputStreamReader(httpResponse.getEntity().getContent()));
String str2 = "";
for (String s = bufferedReader2.readLine(); s != null; s = bufferedReader2
.readLine()) {
builder.append(s);
}
Log.i("cat", ">>>>>>" builder.toString());
//这里需要分析服务器回传的json格式数据
JSONObject jsonObject = new JSONObject(builder.toString()).getJSONObject("calendar");
JSONArray jsonArray = jsonObject.getJSONArray("calendarlist");
for(int i=0;i<jsonArray.length();i ){
JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);
CalendarInfo calendarInfo = new CalendarInfo();
calendarInfo.setCalendar_id(jsonObject2.getString("calendar_id"));
calendarInfo.setTitle(jsonObject2.getString("title"));
calendarInfo.setCategory_name(jsonObject2.getString("category_name"));
calendarInfo.setShowtime(jsonObject2.getString("showtime"));
calendarInfo.setEndtime(jsonObject2.getString("endshowtime"));
calendarInfo.setAllDay(jsonObject2.getBoolean("allDay"));
calendarInfos.add(calendarInfo);
}